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Finding the Fourth Proportional to 58,992.04, 81,420.42 and 38,813.32

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Solution

The fourth proportional to 58,992.04, 81,420.42 and 38,813.32 is: 53,569.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,992.04 : 81,420.42 = 38,813.32 : x
  2. Step 2: Convert to fraction form
    58,992.04/81,420.42 = 38,813.32/x
  3. Step 3: Cross multiply
    58,992.04x = 81,420.42 × 38,813.32
  4. Step 4: Simplify right side
    58,992.04x = 3,160,196,815.99
  5. Step 5: Solve for x
    x = 3,160,196,815.99/58,992.04
  6. Step 6: Final answer
    x = 53,569.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.